Air quality index [µg/m3]:
excellent ≤ 12
good ≤ 36
lightly polluted ≤ 60
moderately polluted ≤ 84
heavily polluted ≤ 120
severely polluted > 120
PM 2.5
[µg/m3]
PM 10
HOUR OPOLSKA ST. ROOF (BEFORE FILTERS)  AIR SUPPLIED TO OFFICES
200030goodexcellent41excellent
190024goodexcellent41excellent
180021goodexcellent41excellent
170020goodexcellent41excellent
160028goodexcellent51excellent
150030goodexcellent51excellent
140031goodexcellent61excellent
130032goodexcellent91excellent
120039lightly pollutedexcellent91excellent
110050lightly pollutedexcellent101excellent
100046lightly pollutedexcellent91excellent
090043lightly pollutedexcellent71excellent
080035goodexcellent61excellent
070032goodexcellent51excellent
060025goodexcellent61excellent
050029goodexcellent71excellent
040032goodexcellent71excellent
030033goodexcellent71excellent
010042lightly pollutedexcellent81excellent
000039lightly pollutedexcellent101excellent
230055lightly pollutedexcellent101excellent
220045lightly pollutedexcellent111excellent
210056lightly pollutedexcellent111excellent